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Tue, 13 Sep 2022 18:44:36 +0100 Date: Tue, 13 Sep 2022 18:44:36 +0100 Message-ID: <871qsfuq2j.wl-maz@kernel.org> From: Marc Zyngier To: Frank Li Cc: "tglx@linutronix.de" , "robh+dt@kernel.org" , "krzysztof.kozlowski+dt@linaro.org" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kw@linux.com" , "bhelgaas@google.com" , "linux-kernel@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-pci@vger.kernel.org" , Peng Fan , Aisheng Dong , "jdmason@kudzu.us" , "kernel@pengutronix.de" , "festevam@gmail.com" , dl-linux-imx , "kishon@ti.com" , "lorenzo.pieralisi@arm.com" , "ntb@lists.linux.dev" , "lznuaa@gmail.com" , "imx@lists.linux.dev" , "manivannan.sadhasivam@linaro.org" Subject: Re: [EXT] Re: [PATCH v9 2/4] irqchip: Add IMX MU MSI controller driver In-Reply-To: References: <20220907034856.3101570-1-Frank.Li@nxp.com> <20220907034856.3101570-3-Frank.Li@nxp.com> <87fsh2qpq4.wl-maz@kernel.org> <877d2dvs0d.wl-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: frank.li@nxp.com, tglx@linutronix.de, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kw@linux.com, bhelgaas@google.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, peng.fan@nxp.com, aisheng.dong@nxp.com, jdmason@kudzu.us, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, kishon@ti.com, lorenzo.pieralisi@arm.com, ntb@lists.linux.dev, lznuaa@gmail.com, imx@lists.linux.dev, manivannan.sadhasivam@linaro.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220913_104443_859910_D9A19CA5 X-CRM114-Status: GOOD ( 19.24 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 12 Sep 2022 16:53:40 +0100, Frank Li wrote: > > > > [Frank Li] I remember you said that irq-chip can't be removed. > > > So I am not sure why need build as module. > > > > Not being removed doesn't mean it cannot be built as a module and > > loaded on demand. Why should I be forced to have this driver built-in > > if my kernel is used on a variety of systems, only one of them having > > this device? > > [Frank Li] A problem, platform_msi_create_irq_domain have NOT export > to let module Call it. > https://elixir.bootlin.com/linux/latest/source/drivers/base/platform-msi.c#L122 > > Do you want to me add EXPORT_SYMBOL_GPL for it OR keep "bool" here? Please add a patch exporting the missing symbols, and make the think modular. M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel